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Answers by Aakanchha
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ISI 2017 PCB C3 (A)
Let R(A, B, C) be a relation with primary key (A) and S(A, D, E) a relation with primary key (A, D). Each of the relations has n tuples. If the number of tuples in R natural join S is m, then determine the number of tuples in R natural left outer join S.
Let R(A, B, C) be a relation with primary key (A) and S(A, D, E) a relation with primary key (A, D). Each of the relations has n tuples. If the number of tuples in R natu...
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May 3, 2018
Databases
userisi2017
usermod
databases
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54
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GATE CSE 2018 | Question: 11
In an Entity-Relationship (ER) model, suppose $R$ is a many-to-one relationship from entity set E1 to entity set E2. Assume that E1 and E2 participate totally in $R$ and that the cardinality of E1 is greater than the cardinality of E2. Which ... Every entity in E2 is associated with exactly one entity in E1 Every entity in E2 is associated with at most one entity in E1
In an Entity-Relationship (ER) model, suppose $R$ is a many-to-one relationship from entity set E1 to entity set E2. Assume that E1 and E2 participate totally in $R$ and ...
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Feb 14, 2018
Databases
gatecse-2018
databases
er-diagram
normal
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